Heat exchange device



Jan. 14, 193.6. v F-. G. CORNELL, JR 2,027,809 7 v f HEAT EXCHANGE DEVICE Filed Jam 24, 19:54 2 Sheets-Sheet 1 ATTORNEY Jan. 14, 1936. F. G. CORNELL, JR 2,

' HEAT EXCHANGE DEV-ICE, I

Filed Jan. 24, 1954 2 Sheets-Shet 2 Z0 INVENTOR ATTORNEY Patented Jan. 14, 1936.

NITED. STATES PATENT oFFica 7 nna'r EXCHANGE Davida Fritz G. Cornell, Jr., Mountain Lakes, N. J. Application January 24, 1934, Serial No. 708,032-

,41 Claims. (01. 257-180 E This invention relates to'heat exchange devices and more particularly to devices suitable for use in attemperating-milk and other liquid products.

- An object of this invention is a compact, inexpensive and-completely enclosed heat exchange device capable of handling a large quantity of liquid in a small space and made up of a plurality of units which are easily movable relative to each other to singly expose each unit, therei by facilitating cleaning of the same.

A device embodying the invention comprises a cabinet within which a plurality of heat exchange units are located side by side in parallel arrangement and means are provided for supplying milk or other liquid product to the top of each unit and collecting means are provided below the units. Each unit is mounted for edgewise or endwise movement independently of the other units so that any unit may be moved away from the remainder to expose it and make it accessible for cleaning,

Other objects, novel features and advantages of this invention will be apparent from the following specification and accompanying drawings, wherein:

Fig. 1 is a perspective view of the device with the cabinet closed;' I

Fig. 2 is a perspective view ofthe heat exchange device; 7 v Fig. 3 is a plan view with one of the units moved into exposed position;

Fig. 4 is a perspective view of the same ar-- rangement as in Fig. 3, and

Fig. 5"is avertical section partially broken away through a unit. p,

The cabinet is provided with a removable cover l0 and the front wall consists of two hinged I doors ll while one end wall consists of two hinged doors l2.

'Within the cabinet are arranged a-plurality of heat exchange units l6, each consisting of a pair of vertical headers and I8 connected by horizontal tubes IS, the headers" being provided with baii1es-2ll to direct liquid serially there is provided astufling box 23. A pipe 24 ex- The end'wall opposite the doors l2- consists of a casing l3 and the floor or base I4' is provided with a detachable extension [5.

tends through the stufflng box .22 and runs sub- 7 stantially the full length of thebottom tube. A packing gland 25 establishes a sliding liquidtight fit between the pipe 24 and the stumng box 22. A pipe-26 extends'through the nipple 23 and runs substantially the. full length of the top tube, and a-packing gland 21 establishes a sliding but liquid-tight connection between the pipe and stufling box. Each pipe 24 is connected to a horizontal header 28 while each pipe 26 is connected to a horizontal header 29. A pipe 30 supplies liquid to the header 28 and a pipe 3| leads liquid away from the header 29,.

The header or manifold 28 is provided with a series of stufling boxes 22' in which are arranged the ends of the pipes 24. .The end of each pipe 24 is provided with a flange 24' which has a sliding fit inthe stufling box and suitable packing is interposed between this flange and a packing gland 25' which slidably fits the pipe 24 and is'screwed into the stufling box 22'. The

header or manifold 29 is provided with a series of stuffing boxes 23" in which are arranged the ends of the pipes 26. The end of each pipe 26 is provided with a flange 26' which has a sliding fit in the stufling box and suitable packing is interposed between this flange and the packing gland 21' which slidably fits the pipe 26 and is screwed into the stufiing box 23. In theabove-described stufling box connections, the" pipes 24 and 26 inherently have suflicient play to allow slight deviationof the heating units from rectilinear movement without interfering with free telescopingof the units on the pipes.

,Each heat exchange unit may be moved edgewise away from the horizontal headers and back to original position without breaking the liquid conducting connections between the horizontal headers and the unit. The units slide on the pipes 24 and 26.,and the packingglands maintain liquid-tight relation at all times. Rollers '2l' support the units I6 and facilitate'endwise movement thereof. The bar 39 pivoted at 3911 extends across the right-hand end of the assembly of heat exchange units and is supported at its free end by a'bracket 3917. This bar normally prevents endwise movement of the unitsand may be swung upwardly about its pivot to. release said units for endwise movement.

A removablecollecting pan 32 is supported beneath the'heatl exchange units and is .provided with a discharge pipe 33 which extends through 1 an aperturein the front wall formed by cooper-' 'ating recesses in the meeting edges ofthe doors l l. Each vertical header I1 and I8 is provided Liquid is supplied to the top tube of each unit by means 01' a distributor comprising a plurality of perforated pipes 35 resting in grooves in the tops of the headers l1 and I8, a cross pipe 38 connected to each of the pipes 35 and a supply pipe 31 leading to the cross pipe 36. The supply pipe 31 extends to a point outside the cabinet through a slot in'the end wall of the casing formed by cooperating recesses in the meeting edges of the doors l2. The liquid supply pipe 30 is provided with a valve 40 having a vertically movable stem 4| on the upper end of which rests a bracket 42' carried by one pipe 35 of the distributor. The weight of the distributor holds the valve stem in depressed position, thereby opening the valve and permitting the flow of liquid through the pipe 30. Removal of the distributor permits the valve stem to rise, thereby closing the valve and preventing flow of liquid through the pipe 30. This arrangement of valve prevents the heat exchange unit l6 from being subjected to hydraulic pressure when the distributor is removed, thus preventing undesirable endwise movement of the heat exchange unit when the cabinet is open for cleaning the units. The bar 39 prevents endwise movement of the units 16 under hydraulic pressure during operation, the bar 39 being removed when it is desiredto clean the units.

In operation, the heat exchange units are all arranged in the position shown in Fig. 2, with the pan 32 and bar 39 inplace and the distributor arranged with the pipes 35 resting in the sockets in the tops of the vertical headers, the doors Ii and I2 being closedand the cover III in place as shown in Fig. l. A milk supply pipe is connected to the pipe 31 and a milk discharge pipe is. connected to the pipe 33. Different cooling media are circulated through the lower and upper sections of the units by way of the pipes 30 and 3| and headers 23 and 23 and the milk flowing down over the pipes is progressively cooled.

After a run has been completed, the extension I5 is attached 'to the base II, the cover it) is removed and the doors ii and i2 are opened. The distributor is lifted off the tops of the units and removed, thereby closing the valve 40 and the pan 32 is withdrawn. The bar 39 is moved away from the ends of the heat exchange units.

A unit is then pulled out to the position shown in Figs. 3 and 4 by means of the handle 33 in which position itis completely accessible for cleaning. The extension l5 provides a level surface for the rollers 2| to travel over so that movement of the unit back and forth is facilitated. The movement of the unit is'accomplished with.-' out disconnecting any parts and while the unit is maintained in operative relation to the headers by reason of the fact thatthe unit has slid out on the pipes 24 and 26. After a unit has been units gives maximum capacity in minimum space. As the units are movable into and out of cleaning position without disturbing the connections between the headers and the unitsthere is no leakage of cooling media and the cleaning operation can be accomplished with minimum eifort.

The heat exchange device has been specifically described as adapted primarily for cooling milk or other liquids but it is apparent that it may also be used for heating milk or other liquid produced, in which event, the heating fluid will be supplied through the pipe 30 to the headers as above described. It is' also understood that various modifications may be made in the structure above described, without in any way departing from the spirit of the invention as defined in the appended claims.

- I claim:

1. An attemperating device comprising a plurality of heat exchange units arranged face to face and separable one from the rest by movement in their own planes, and means connected to said units for circulating heat exchange media therethrough in any position of said units. I

2. An attemperating device comprising a heat exchange unit, an inlet pipe and an outlet pipe connected to said unit for bodily movement of the latter relative to the former in its own plane.

3. An attemperating device comprising a heat exchange unit, an inlet pipe, an outlet pipe and sliding connections between said unit and pipes for permitting bodily movement of said unitin its own plane relative to said pipes.

4. An attemperating device comprising a heat exchange unit, an inlet pipe, an outlet pipe and telescoping connections between said unit and pipes for permitting bodily movement of said unit in its own plane relative to said pipes.

5. An attemperating device comprising a heat exchange unit, an inlet pipe and an outlet pipe therefor, said inlet and outlet pipes extending substantially through said unit and having liquid-tight sliding connection therewith for permitting bodily movement of the unit in its own plane relative to said pipes..

6. An attemperating device comprising a heat exchange unit, an inlet pipe and an outlet pipe, said heat exchange unit comprising a pair of headers having connecting tubes, said pipes extending into tubes of said unit and having liquidtight sliding connection with said headers for K permitting bodily movement of each unit in its "own plane relative to its inlet and outlet pipes.

7. An attemperating device comprising a plurality of heat exchange units each comprising 4 8. An attemperating device comprising a plurality of heat exchange units each comprising a pair of vertical headers connected by-horizontal tubes, a pair of superposed horizontal headers, a plurality of pipes extending from the bottom horizontal header into the bottom tubes oi said units, and a plurality of pipes extending from the upper horizontal header into the top tubes of said units and sliding liquid-tight connections between said pipes and unit headers. i

9. An attemperating device comprising a casing having a base, an extension detachably connected to said base, a plurality of heat exchange units, rollers for said units, each unit consisting of a pair of vertical headers connected by tubes, an inlet pipe and an outletpipe for each unit, each pipe extending into a tubeand having a sliding liquid-tight connection with the unit for permitting bodily movement of each unit in its own plane relative to its inlet and outlet pipes,

each 'unit being individually movable endwise from said base onto said extension to render said unit accessible for cleaning.

10. Anattemperating device comprising a casing having a' base, an extension for said base, a

plurality of heat exchange units supported by said base, an inlet pipe and an outlet pipe for each unit, and telescoping connections between each unit and its inlet and outlet pipes for permitting bodily movement of each unit in its own plane relative to its inlet and outlet pipes, each unit being individually movable endwise from said base onto said extension to render said unit accessible for cleaning. 7

11. An attemperating device comprising a plurality of heat exchange units arranged face to face, supply-and discharge headers for said units,

.' and connections between each header and each ,maining units. a g e 14. An attemperating device comprising a casunit permittingv relative bodily movement of each unit'in its own plane relative to said headersand to the remaining units.

12.. An attemperating device comprising a plurality of heat exchange units, each consisting of a pair of vertical headers connected by horizontal tubes, pipes extending into selected tubes of each unit and sliding liquid-tight connections between said pipes and headers.

13; An attemperating device comprising a casing having a base, an extension therefor, a plurality of heat exchange units supported by said base face to face and separable one from another'by endwise movement. and means for cir- I culating heat exchange media through saidunits, said extension serving to provide a support for a unit when moved out of alinement with the reing having a base, on extension therefor, a plurality of heat exchange units supported by said base face to face, an inlet pipe and an outlet pipe for each unit, and telescoping-connections between each unit and the inlet .and outlet pipes therefor permitting endwise movement of said unit, said extension servingto provide a support for a unit when -movedout of alinement with the remaining units.

15. An attemperating' device comprising a c'as ing having a base and having one wall consisting of pivoted doors, an extension for said,base, a plurality of heat exchange units within said casing arranged face to face and separable one from i another by endwise movement, means for circurality of heat exchange units arranged face to "face and separable one from another by endwise lating heat exchange media through said'units,

and rollers supporting said units, said units being movable endwise from said base onto said extension through said doors.

16. An attemperating device comprising a plumovement, means for circulating heat exchange 'media through said units, said units being provided with recesses at the tops thereof, and a distributor comprising a plurality of pipes overlying said units and being receiv d in said recesses.

1'7. An attemperating device. comprising a casing having a base and one wall consisting of hinged doors, an extension for said base, a plurality of heat exchange units-within said casing arranged face to face and separable one from-aners for said units, said units being movable endwise fromsaid base onto said extension through said doors, said units being provided with recesses at the tops thereof and a distributor comother by endwise movement, means for circulating heat exchange media through said units,"rollprising a plurality of pipes overlying said units and received in said recesses.

18. An attemperating device comprising a casing having a base and one wall consisting of two pivoted doors, an extension for said base, a p1urality of heat exchange units within said casing arranged face to face and separable one from another by endwise movement, 'each unit consisting of a pair of vertical headers connected by tubes,an inlet pipe and an outlet pipe for each f ing having a base and-one wall consisting of two pivoted doors, an extension for said base, a pinrality of heat exchangefunits within said casing.

- arranged face to face and separable one from another by endwise movement,each unit consisting of'a pair of vertical headers connected by tubes,

an inlet pipe and an outlet pipeforeach unit, each pipe extending into a terminalitube and having a sliding liquid-tight connectionwith the unit for permitting bodily .movement of each unit in its otvn plane relative to its inlet andoutlet pipesiirollers supporting said units, said units being-movable from said base onto said extension through said doors, said headers being provided with recesses at the tops thereof, a distributor comprising a plurality of pipes seatedin said recesses, a second wall of: said casing consisting of two pivoted doors, and acollecting pan removably mounted on said base beneath said units,

said pan being removable through said last-..

named doors; V 20. An attemperating device comprisinga plurality of heat exchange units arranged face to face, an inlet pipe and an outlet pipe for each unit, telescoping" connections between each unit and its inlet and outlet pipes permitting endwise movemiaiitof the unit, a first header to which said inlet pipes are connected, a second header to" which said outletpipes are connected, a supply pipe leading tosaid first-header, a discharge pipe leading from said second header, a Self-closing valve in, said supply pipe, and a distributor removably supported above said heat exchange units, said distributor havingmeans engaging said valve to open the same- 21. An attemperating device comprising aplurality of heat exchange units arranged face to face,an inlet pipe and an ,outlet pipe for each unit, telescoping connections between each unit and its inlet and'outletpipes permitting endwise movement of the unit, a first header. to which said inlet pipes are connected, a second header to which said outlet pipes are connected, a supply pipe leading to said first headen-a discharge pipe leading from said. second header, aself-closing valve in said supply pipe, a, distributor remov ably supported above said heat.exchange units,

said distributor having, means engaging said valve to open the same, and a movable locking bar for retaining said heat exchange units, in face to face relation.

22. An attemperating device comprising a pluinlet and outlet pipes permitting movement of the unit in its own plane, and a movable locking bar for retaining said units in face to face relation.

23. An attemperating device comprising a plurality of heat exchange units arranged face to face, an inlet and an outlet pipe for each unit,

telescoping connections betwen each unit and its inlet and outlet pipes permitting movement of the unit in its own plane, and means for preventing movement of said units under hydraulic pressure developed therein during operation of the device.

24. An attemperating device comprising a plurality of heat exchange units arranged face to face and separable one from another by movement in its own plane, a pipe for supplying heat exchange medium to said units, a self-closing valve in'said supply pipe and a distributor assembly supported above said heat exchange units, said distributor having means engaging said valve to open the same.

' 25. An attemperating device comprising a plurality of heat exchangeunits arranged face to face and separable one from another by movement in its own plane, a pipe for supplying heat exchange medium to said units, a self-closing valve in said supply pipe and a distributor assembly supported .above said heat exchange units, said distributor having means engaging said valve to open the same, and means for preventing movement of said units under hydraulic pressure developed therein during operation of the device.

26. An attemperating device comprising a plurality of heat exchange units arranged face to face and separable one from another by movement in its own plane, means connected to said units for circulating heat exchange media therethrough many position of the units, and a distributor supported above said units for supplying thereto liquid to be attemperated.

27. An attemperating device comprising a plurality of heat exchange units arranged face to face, inlet and outlet pipes connected to each unit for bodily movement of each unit-in its own plane relative to its said pipes and to the remaining units, and a distributor overlying said units.

28. An attemperating device comprising a plurality of heat exchange units arranged face to face, inlet and outlet pipes for said units, sliding connections between each unit and its pipesfor permitting bodily movement of said unit in its own plane relative to said pipe-s and to the remaining units and a distributor overlying said units.

29. An attemperating device comprising a plurality of heat exchange units arranged face to face, inlet and outlet pipes for said units, telescoping connections between each unit and its pipes for permitting bodily movement of said unit in its own plane relative to said pipes and to the remaining units and a distributor overlying said units.

30. An attemperating device comprising a plurality of heat exchange units face to face, inlet and outlet pipes for said units, the supply and discharge pipes for each unit extending substantially therethrough and having liquid tight sliding connection therewith for permitting bodily movement of each unit in its own plane ,relative to its pipes and the remaining units, and

a distributor overlying said units.

31. An attemperating device comprising a casing, an openable wall, a plurality of heat exchange units supported within said casing face to face and being individually movable in their own planes through said openable wall, and means for circulating heat exchange medium through said units in any position of said units.

32. An attemperating device comprising 9. casing, an openable wall, a. plurality of heat exchange units supported within said casing face to face and being individually movable in their ownplanes through said openable wall, and inlet and outlet pipes for each unit, each pipe extending into and having a sliding liquid-tight connectlon with its unit.

33. An attemperating device comprising a casing having a base and having an openable wall,

an extension for said base, a plurality of heat exchange units supported within said casing on circulating heat exchange medium through said units.

34. An attemperating device comprising a casing having a base and having one wall openable, an extension for said base, a plurality of heat exchange units supported within said casing on said base face to face and being individually movable endwise from said base on to said extension through said openable wall, and means for circulating heat exchange media through said units, and a distributor overlying said units.

35. An attemperat-ing device comprising a casing having a base and an openable wall, an extension for saith base, a plurality of heat exchange units supported within said casing on said base face to face and being individually movable endwise from said base on to said extension through said openable wall, and inlet and outlet pipes for each unit, each pipe extending into and having a sliding liquid-tight connection with its unit.

36. An attemperating device comprising a. casing having an openable wall, a plurality of heat exchange units supported within said casing on said base face to face and being individually movable in their own planes through said openable wall, and inlet and outlet pipes for each unit, each pipe extending into and having a sliding liquid-tight connection with its unit; and a distributor overlying said units.

37. An attemperating device comprising a casing having a base and an openable wall, an extension for said base, a plurality of heat exchange units supported within said casing on said base face to face and being individually movable endwise from said base on to said extension through said openable wall, inlet and outlet pipes for each unit having liquid-tight telescoping connections, a second openable wall for said casing, a collecting pan removably mounted on said base beneath said units and being removable through said lastnamed wall, and a distributor overlying said units.

38. An attemperating device comprising a plurality of heat exchange units supported face to face and being individually movable in their own planes, inlet and outlet pipes for said units, a first header to which said inlet pipes are connected, a second header to'which said outlet pipes are connected, a supply pipe leading to said first header, a discharge pipe leading from said secondheader, a self-closing valve in said supply pipe, and a distributor removably supported above said heat exchange units, said distributor having means engaging said valve to open the same.

39. An attemperating device comprising a casing having a base and an o'penable wall, an extension for said base, a plurality of heat exchange units supported within said casing on said base face to face and being individually movable endwise from said base on to said extension through said o'penable wall, inlet and outlet pipes for said units, a first header to which said inlet pipes are connected, a second header to which said outlet pipes are connected, 9. supply pipe leading to said first header, a discharge pipe leading from said second header, a self-closing valve in said supply pipe, and a distributor removably supported above said heat exchange units, said distributor having means engaging said valve to open the same.

40. An attemperating device comprising a casing having a base and an openable wall, an extension for said base, a plurality of heat exchange units supported within said casing on said base face to face and being individually movable endwise from said base on to said extension through said openable wall, inlet and outlet pipes for said units, a first header to which said inlet pipes are connected, a second header to which said outlet pipes are connected, a supply pipe leading to said first header, a discharge pipe leading from said-second header, a self-closing valve in said supply pipe. a distributor removably supported above said heat exchange units, said distributor having means engaging said valve to open the same, and releasable locking means for retaining said heat exchange units in face'to face relation. 41. An attemperatlng device comprising a plurality of heat exchange units arranged face to face, a pair of headers, inlet and outlet pipes for Fnrrz a. CORNELL, a.

said units on 

